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tritium 音标拼音: [tr'ɪtiəm]

XDict

n. 三重氢

PyDict

三重氢

WordNet (r) 3.0 (2006) (WordNet)

tritium
n 1: a radioactive isotope of hydrogen; atoms of tritium have
three times the mass of ordinary hydrogen atoms

The Collaborative International Dictionary of English v.0.48 (gcide)

tritium \trit"i*um\ (tr[i^]t"[i^]*[u^]m), n. (Chem.)
A radioactive isotope of hydrogen having one proton and two
neutrons in the nucleus. It decays spontaneously to Helium-3
by the emission of an electron (beta ray), with a half-life
of 12.3 years. Symbol 1H3. Atomic weight 3.01605 (C-12 =
12.0000). It is one of the radioisotopes commonly used to
label chemical compounds for use as tracers in biochemistry
and chemistry. It is also used as one of the fusionable
components of a hydrogen bomb.
[PJC]

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英文字典中文字典相关资料:

Tritium | Radioactive, Hydrogen, Decay | Britannica
Tritium, (T, or 3H), the isotope of hydrogen with atomic weight of approximately 3 Its nucleus, consisting of one proton and two neutrons, has triple the mass of the nucleus of ordinary hydrogen Tritium is a radioactive species having a half-life of 12 32 years; it occurs in natural water with an
Radionuclide Basics: Tritium - US EPA
Tritium (abbreviated as 3 H) is a hydrogen atom that has two neutrons in the nucleus and one proton Tritium is produced naturally in the upper atmosphere when cosmic rays strike nitrogen molecules in the air Tritium is also produced during nuclear weapons explosions, and as a byproduct in nuclear reactors

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